Home / 822,052.20-1,231,766.10-688,207.80

Finding the Fourth Proportional to 822,052.20, 1,231,766.10 and 688,207.80

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Solution

The fourth proportional to 822,052.20, 1,231,766.10 and 688,207.80 is: 1,031,213.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    822,052.20 : 1,231,766.10 = 688,207.80 : x
  2. Step 2: Convert to fraction form
    822,052.20/1,231,766.10 = 688,207.80/x
  3. Step 3: Cross multiply
    822,052.20x = 1,231,766.10 × 688,207.80
  4. Step 4: Simplify right side
    822,052.20x = 847,711,037,795.58
  5. Step 5: Solve for x
    x = 847,711,037,795.58/822,052.20
  6. Step 6: Final answer
    x = 1,031,213.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.